At Krygen Metalloys, Stainless Steel 321 Tubes are engineered for performance, durability, and precision. As trusted manufacturers, suppliers, stockists, and exporters, we understand that industries demand products that stand up to extreme environments and rigorous use. Our SS 321 Tubes are made from titanium-stabilized stainless steel, delivering excellent resistance to intergranular corrosion and maintaining strength at elevated temperatures. This makes them a preferred choice for applications where both mechanical integrity and corrosion resistance are essential.
One of the defining features of our Stainless Steel 321 Tubes is their ability to withstand continuous service in the 900°C range without losing structural stability. The titanium content ensures minimal carbide precipitation during welding and high-temperature exposure, making them suitable for heat-intensive operations. Available in seamless and welded forms, these tubes are manufactured to meet international standards such as ASTM A213 and A312, ensuring clients receive consistent, specification-compliant products every time.
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Our SS 321 Tubes serve a broad spectrum of industries. In oil & gas operations, they perform reliably in offshore and onshore environments, resisting corrosion from harsh chemicals and seawater exposure. In the petrochemical sector, they handle high-temperature processes and aggressive fluids without compromising safety. Construction companies value their structural integrity in architectural frameworks, while the food processing industry relies on their hygienic, easy-to-clean surfaces. In pharmaceutical manufacturing, their non-reactive properties ensure product purity and process safety.
Beyond material quality, Krygen Metalloys is recognized for a global supply network that meets urgent project timelines without compromising product standards. Our position as leading exporters means we can deliver SS 321 Tubes to clients across continents, backed by robust packaging and reliable logistics. We maintain an extensive stock to cater to both bulk orders and small, specialized requirements, ensuring businesses receive their materials when they need them most.
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Quality assurance is at the core of our operations. Every Stainless Steel 321 Tube undergoes strict inspection, including dimensional accuracy checks, mechanical testing, and corrosion resistance evaluation. We work with third-party inspection agencies when required, reinforcing our commitment to transparency and trust. Compliance with ISO and other global quality standards guarantees that our customers receive only premium-grade products that perform as promised.
When you choose Krygen Metalloys, you’re not just purchasing stainless steel tubes—you’re partnering with a team that prioritizes reliability, technical expertise, and long-term performance. Our SS 321 Tubes are designed to be more than components; they are critical enablers of safety, efficiency, and productivity in demanding industrial environments. With our experience, global reach, and dedication to excellence, we help clients achieve operational success without compromise.
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Stainless Steel 321 Tubes Specification
Specifications | ASTM A213, A312, A269, A358 / ASME SA213, SA312, SA269, SA358 |
---|---|
Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Type | Seamless / ERW / Welded / Fabricated / CDW |
Form | Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
Length | Single Random, Double Random & Required Length |
End | Plain End, Beveled End, Treaded |
Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements |
Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
Mechanical Properties of Stainless Steel 321 Tubes
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
---|---|---|---|---|---|
Rockwell B (HR B) max | Brinell (HB) max | ||||
321 | 515 | 205 | 40 | 95 | 217 |
Chemical Composition of Stainless Steel 321 Tubes
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
---|---|---|---|---|---|---|---|---|---|---|---|
321 | min. max |
- 0.08 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
0.10 | Ti=5(C+N) 0.70 |
Application of Stainless Steel 321 Tubes
